When literally every expert and every shred of credible evidence agrees that it's hopeless, pretending it isn't hopeless is just going to leave you unprepared, and you'll end among the first of the dead when the collapse happens and leads to long term global famine.

It takes an incredibly childish and naive view of the world to believe that the entire world is going to suddenly come together to meaningfully reduce emissions in the forseeable future. That's very literally the only possible solution, and it cannot possibly happen.